R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> x <- c(7.8,8,8.1,8.2,8.1,7.7,6.9,6.6,6.7,7,7.1,7,6.9,6.8,6.8,7,7,6.8,6.7,6.6,6.4,6.4,6.4,6.5,6.6,6.5,6.3,6.2,6.1,6.5,7.1,7.2,6.9,6.2,6,6.2,6.9,7.4,7.8,7.8,7.7,7.7,7.6,7.6,7.7,8,8.2,8.4,8.2,8.1,8.1,8.2,8.3,8.4,8.5,8.3,8.1,7.9,7.7,7.6,7.4,7.3,7,6.8,6.8,6.9,7.3,7.5,7.5,7.2,7,6.9,7,7.1,7.1,7.2,7.3,7.3,7.2,7.5,8,8.7,9,9,8.8,8.5,8.5,8.5,8.5,8.6,8.7,8.8,8.8,8.7,8.7,8.8)
> par1 = '12'
> par1 <- '12'
> #'GNU S' R Code compiled by R2WASP v. 1.2.291 ()
> #Author: root
> #To cite this work: Wessa P., (2012), Standard Deviation Plot (v1.0.2) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_sdplot.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #
> par1 <- as.numeric(par1)
> (n <- length(x))
[1] 96
> (np <- floor(n / par1))
[1] 8
> arr <- array(NA,dim=c(par1,np+1))
> ari <- array(0,dim=par1)
> j <- 0
> for (i in 1:n)
+ {
+ j = j + 1
+ ari[j] = ari[j] + 1
+ arr[j,ari[j]] <- x[i]
+ if (j == par1) j = 0
+ }
> ari
 [1] 8 8 8 8 8 8 8 8 8 8 8 8
> arr
      [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9]
 [1,]  7.8  6.9  6.6  6.9  8.2  7.4  7.0  8.8   NA
 [2,]  8.0  6.8  6.5  7.4  8.1  7.3  7.1  8.5   NA
 [3,]  8.1  6.8  6.3  7.8  8.1  7.0  7.1  8.5   NA
 [4,]  8.2  7.0  6.2  7.8  8.2  6.8  7.2  8.5   NA
 [5,]  8.1  7.0  6.1  7.7  8.3  6.8  7.3  8.5   NA
 [6,]  7.7  6.8  6.5  7.7  8.4  6.9  7.3  8.6   NA
 [7,]  6.9  6.7  7.1  7.6  8.5  7.3  7.2  8.7   NA
 [8,]  6.6  6.6  7.2  7.6  8.3  7.5  7.5  8.8   NA
 [9,]  6.7  6.4  6.9  7.7  8.1  7.5  8.0  8.8   NA
[10,]  7.0  6.4  6.2  8.0  7.9  7.2  8.7  8.7   NA
[11,]  7.1  6.4  6.0  8.2  7.7  7.0  9.0  8.7   NA
[12,]  7.0  6.5  6.2  8.4  7.6  6.9  9.0  8.8   NA
> arr.sd <- array(NA,dim=par1)
> arr.range <- array(NA,dim=par1)
> arr.iqr <- array(NA,dim=par1)
> for (j in 1:par1)
+ {
+ arr.sd[j] <- sqrt(var(arr[j,],na.rm=TRUE))
+ arr.range[j] <- max(arr[j,],na.rm=TRUE) - min(arr[j,],na.rm=TRUE)
+ arr.iqr[j] <- quantile(arr[j,],0.75,na.rm=TRUE) - quantile(arr[j,],0.25,na.rm=TRUE)
+ }
> overall.sd <- sqrt(var(x))
> overall.range <- max(x) - min(x)
> overall.iqr <- quantile(x,0.75) - quantile(x,0.25)
> postscript(file="/var/wessaorg/rcomp/tmp/1xq101425895968.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(arr.sd,type='b',ylab='S.D.',main='Standard Deviation Plot',xlab='Periodic Index')
> mtext(paste('# blocks = ',np))
> abline(overall.sd,0)
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/2aqa01425895968.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(arr.range,type='b',ylab='range',main='Range Plot',xlab='Periodic Index')
> mtext(paste('# blocks = ',np))
> abline(overall.range,0)
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/3gobv1425895968.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(arr.iqr,type='b',ylab='IQR',main='Interquartile Range Plot',xlab='Periodic Index')
> mtext(paste('# blocks = ',np))
> abline(overall.iqr,0)
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/4a1an1425895968.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> z <- data.frame(t(arr))
> names(z) <- c(1:par1)
> (boxplot(z,notch=TRUE,col='grey',xlab='Periodic Index',ylab='Value',main='Notched Box Plots - Periodic Subseries'))
$stats
     [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12]
[1,]  6.6 6.50 6.30  6.2  6.1 6.50 6.70 6.60 6.40  6.20  6.00   6.2
[2,]  6.9 6.95 6.90  6.9  6.9 6.85 7.00 6.90 6.80  6.70  6.70   6.7
[3,]  7.2 7.35 7.45  7.5  7.5 7.50 7.25 7.50 7.60  7.55  7.40   7.3
[4,]  8.0 8.05 8.10  8.2  8.2 8.05 8.05 7.95 8.05  8.35  8.45   8.6
[5,]  8.8 8.50 8.50  8.5  8.5 8.60 8.70 8.80 8.80  8.70  9.00   9.0

$n
 [1] 8 8 8 8 8 8 8 8 8 8 8 8

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 6.585524 6.735524 6.779663 6.773801 6.773801 6.829663 6.663455 6.913455
[2,] 7.814476 7.964476 8.120337 8.226199 8.226199 8.170337 7.836545 8.086545
         [,9]    [,10]    [,11]    [,12]
[1,] 6.901732 6.628286 6.422425 6.238633
[2,] 8.298268 8.471714 8.377575 8.361367

$out
numeric(0)

$group
numeric(0)

$names
 [1] "1"  "2"  "3"  "4"  "5"  "6"  "7"  "8"  "9"  "10" "11" "12"

Warning message:
In bxp(list(stats = c(6.6, 6.9, 7.2, 8, 8.8, 6.5, 6.95, 7.35, 8.05,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/56nd61425895968.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> z <- data.frame(arr)
> names(z) <- c(1:np)
> (boxplot(z,notch=TRUE,col='grey',xlab='Block Index',ylab='Value',main='Notched Box Plots - Sequential Blocks'))
$stats
     [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9]
[1,] 6.60 6.40 6.00  7.4 7.60 6.80 7.00  8.5   NA
[2,] 6.95 6.45 6.20  7.6 8.00 6.90 7.15  8.5   NA
[3,] 7.40 6.75 6.40  7.7 8.15 7.10 7.30  8.7   NA
[4,] 8.05 6.85 6.75  7.9 8.30 7.35 8.35  8.8   NA
[5,] 8.20 7.00 7.20  8.2 8.50 7.50 9.00  8.8   NA

$n
[1] 12 12 12 12 12 12 12 12  0

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 6.898283 6.567557 6.149141 7.563168 8.013168 6.894752 6.752672 8.563168
[2,] 7.901717 6.932443 6.650859 7.836832 8.286832 7.305248 7.847328 8.836832
     [,9]
[1,]   NA
[2,]   NA

$out
[1] 6.9 8.4

$group
[1] 4 4

$names
[1] "1" "2" "3" "4" "5" "6" "7" "8" NA 

Warning message:
In bxp(list(stats = c(6.6, 6.95, 7.4, 8.05, 8.2, 6.4, 6.45, 6.75,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6yi1d1425895968.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> z <- data.frame(cbind(arr.sd,arr.range,arr.iqr))
> names(z) <- list('S.D.','Range','IQR')
> (boxplot(z,notch=TRUE,col='grey',ylab='Overall Variability',main='Notched Box Plots'))
$stats
          [,1] [,2]   [,3]
[1,] 0.6864765 2.00 0.7250
[2,] 0.7572822 2.15 1.0000
[3,] 0.7875214 2.25 1.1625
[4,] 0.8958361 2.45 1.2875
[5,] 1.0749585 2.80 1.7000

$n
[1] 12 12 12

$conf
          [,1]     [,2]     [,3]
[1,] 0.7243260 2.113168 1.031369
[2,] 0.8507168 2.386832 1.293631

$out
[1] 3

$group
[1] 2

$names
[1] "S.D."  "Range" "IQR"  

Warning message:
In bxp(list(stats = c(0.686476510887299, 0.757282180517358, 0.787521423442711,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1xq101425895968.ps tmp/1xq101425895968.png",intern=TRUE))
character(0)
> try(system("convert tmp/2aqa01425895968.ps tmp/2aqa01425895968.png",intern=TRUE))
character(0)
> try(system("convert tmp/3gobv1425895968.ps tmp/3gobv1425895968.png",intern=TRUE))
character(0)
> try(system("convert tmp/4a1an1425895968.ps tmp/4a1an1425895968.png",intern=TRUE))
character(0)
> try(system("convert tmp/56nd61425895968.ps tmp/56nd61425895968.png",intern=TRUE))
character(0)
> try(system("convert tmp/6yi1d1425895968.ps tmp/6yi1d1425895968.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.096   0.332   2.459